<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<span>this is add page</span>
<b th:text="${msg}"></b>
<form action="/auth/user/add" method="post">
    username: <input type="text" name="name"><br>
    password: <input type="text" name="password">
    <button type="submit">提交</button>
</form>
</body>
</html>